A recent study published in Pediatrics found that middle and high school students are, perhaps, experimenting more with substances that pose incredible consequences to their health. No parent thinks it could happen to them — that their child is voluntarily eating fruits and vegetables. In 2002, 14.9 percent of students were considered overweight, and by 2006, 17 percent of students were. Now, here's where it gets weird: By 2010, the number had leveled off.